Bcu 460 - Honeywell BCU 460 Technical Information

Application
L1, N, PE
DI
PLC
BCU 460..B
1...51 BUS
BCU 4xx..D
C
6
DI
9
BCU 460, BCU 465 · Edition 03.16l
P
PROFIBUS DP
BCU 460..B
1...51 BUS
1 2
STM
> 750°C
BCU 460..B
1...51 BUS
3
L1
BCU 4xx..D
C
6
DI
9
1 .1 .5 BCU 460 . .B1 for PROFIBUS DP
The bus system transfers the con-
trol signals for starting, resetting
and for controlling the air valve from
the control system (PLC) to the
BCU..B1. In the opposite direction
it sends operating status, the level
of the flame signal and the current
program status.
Control signals that are relevant for
safety, such as the safety interlocks
and digital input, are transferred
independently of the bus communi-
cation by separate cables.
1 .1 .6 BCU 460 . .D: High temperature
equipment
Indirect flame control using the
temperature. During the start-up
process, as long as the wall temper-
ature is below auto ignition temper-
ature, the flame must be controlled
by conventional methods. When the
working temperature has exceeded
750°C, the safety temperature
monitor (STM) takes over the indi-
rect flame control.
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